Camera optical lens

ABSTRACT

Disclosed is a camera optical lens, comprising, from an object side to an image side in sequence: a first lens having a negative refractive power; a second lens having a positive refractive power; a third lens having a negative refractive power; a fourth lens having a positive refractive power; and a fifth lens having a negative refractive power; the camera optical lens satisfies: −5.00≤f1/f≤−3.00; −1.50≤f5/f≤−1.00; 1.20≤(R7+R8)/(R7−R8)≤3.00; and 8.00≤d7/d8≤14.00; where, f denotes a focus length of the camera optical lens; f1 and f5 denotes focus length of the first and fifth lens respectively; R7 and R 8 denote central curvature radii of an object side surface and an image side surface of the fourth lens respectively; d7 denotes an on-axis thickness of the fourth lens; and d8 denotes an on-axis distance from the image side surface of the fourth lens to an object side surface of the fifth lens.

TECHNICAL FIELD

The present disclosure generally relates to optical lens, in particularto a camera optical lens suitable for handheld terminals, such as smartphones and digital cameras, and imaging devices, such as monitors and PClens.

BACKGROUND

With the emergence of smart phones in recent years, the demand forminiature camera lens is increasing day by day, but in general thephotosensitive devices of camera lens are nothing more than ChargeCoupled Device (CCD) or Complementary Metal-Oxide Semiconductor Sensor(CMOS sensor). As the progress of the semiconductor manufacturingtechnology makes the pixel size of the photosensitive devices becomesmaller, and with the current development trend of electronic productstowards better functions and thinner and smaller dimensions, miniaturecamera lens with good imaging quality therefore have become a mainstreamin the market.

In order to obtain better imaging quality, the lens that istraditionally equipped in mobile phone cameras adopts a three-piece orfour-piece lens structure. While, with the development of technology andthe increase of the diverse demands of users, and as the pixel area ofphotosensitive device is becoming smaller and smaller and therequirement of the system on the imaging quality is improvingconstantly, the five-piece lens structure gradually appears in lensdesign. The common five-piece lens has good optical performance, but thedesign on focal power, lens spacing and lens shape is not reasonable,thus the lens structure could not meet the requirements for having alarge aperture, ultra-thinness and a wide angle while having goodoptical performance.

Therefore, it is necessary to provide a camera lens which meets therequirements for having a large aperture, ultra-thinness and a wideangle while having good optical performance.

SUMMARY

Some embodiment of the present disclosure provides a camera optical lenscomprising five lenses, wherein, the five lenses are, from an objectside to an image side in sequence: a first lens having a negativerefractive power; a second lens having a positive refractive power; athird lens having a negative refractive power; a fourth lens having apositive refractive power; and a fifth lens having a negative refractivepower; wherein, the camera optical lens satisfies the followingconditions: −5.00≤f1/f≤−3.00; −1.50≤f5/f≤−1.00;1.20≤(R7+R8)/(R7−R8)≤3.00; and 8.00≤d7/d8≤14.00; where, f denotes afocus length of the camera optical lens; f1 denotes a focus length ofthe first lens; f5 denotes a focus length of the fifth lens; R7 denotesa central curvature radius of an object side surface of the fourth lens;R8 denotes a central curvature radius of an image side surface of thefourth lens; d7 denotes an on-axis thickness of the fourth lens; and d8denotes an on-axis distance from the image side surface of the fourthlens to an object side surface of the fifth lens.

As an improvement, the camera optical lens further satisfies thefollowing conditions: 2.50≤d3/d4≤5.00; where, d3 denotes an on-axisthickness of the second lens; and d4 denotes an on-axis distance from animage side surface of the second lens to an object side surface of thethird lens.

As an improvement, the camera optical lens further satisfies thefollowing conditions: −4.44≤(R1+R2)/(R1−R2)≤0.38; and 0.03≤d1/TTL≤0.10,where, R1 denotes a central curvature radius of an object side surfaceof the first lens; R2 denotes a central curvature radius of an imageside surface of the first lens; d1 denotes an on-axis thickness of thefirst lens; and TTL denotes a total optical length from an object sidesurface of the first lens to an image surface of the camera optical lensalong an optical axis.

As an improvement, the camera optical lens further satisfies thefollowing conditions: 0.58≤f2/f≤2.44; −0.30≤(R3+R4)/(R3−R4)≤0.82; and0.05≤d3/TTL≤0.22; where, f2 denotes a focus length of the second lens;R3 denotes a central curvature radius of an object surface of the secondlens; R4 denotes a central curvature radius of an image side surface ofthe second lens; d3 denotes an on-axis thickness of the second lens; andTTL denotes a total optical length from an object side surface of thefirst lens to an image surface of the camera optical lens along anoptical axis.

As an improvement, the camera optical lens satisfies the followingconditions: −93.36≤f3/f≤−4.82; 1.70≤(R5+R6)/(R5−R6)≤40.12; and0.02≤d5/TTL≤0.07; where, f3 denotes a focus length of the third lens; R5denotes a central curvature radius of an object surface of the thirdlens; R6 denotes a central curvature radius of an image side surface ofthe third lens; d5 denotes an on-axis thickness of the third lens; andTTL denotes a total optical length from an object side surface of thefirst lens to an image surface of the camera optical lens along anoptical axis.

As an improvement, the camera optical lens further satisfies thefollowing conditions: 0.39≤f4/f≤1.71; and 0.11≤d7/TTL≤0.36; where, f4denotes a focus length of the fourth lens is f4; and TTL denotes a totaloptical length from an object side surface of the first lens to an imagesurface of the camera optical lens along an optical axis.

As an improvement, the camera optical lens further satisfies thefollowing conditions: 0.98≤(R9+R10)/(R9−R10)≤4.92; and 0.05≤d9/TTL≤0.21;where, R9 denotes a central curvature radius of the object surface ofthe fifth lens; R10 denotes a central curvature radius of an image sidesurface of the fifth lens; d9 denotes an on-axis thickness of the fifthlens; and TTL denotes a total optical length from an object side surfaceof the first lens to an image surface of the camera optical lens alongan optical axis.

As an improvement, the camera optical lens further satisfies thefollowing conditions: TTL/IH≤1.75; where, IH denotes an image height ofthe camera optical lens; and TTL denotes a total optical length from anobject side surface of the first lens to an image surface of the cameraoptical lens along an optical axis.

As an improvement, the camera optical lens further satisfies thefollowing conditions: FOV≥119.00°, where, FOV denotes a field of view ofthe camera optical lens.

As an improvement, the camera optical lens further satisfies thefollowing conditions: FNO≤2.26; where, FNO denotes an aperture value ofthe camera optical lens.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solutions in the embodiments of thepresent disclosure more clearly, the drawings to be used for describingthe embodiments will be described briefly in the following. Apparently,the drawings in the following are only for facilitating the descriptionof the embodiments, for those skilled in the art, other drawings may beobtained from the drawings according to the present disclosure withoutcreative work.

FIG. 1 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 1 of the present disclosure;

FIG. 2 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 1;

FIG. 3 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 1;

FIG. 4 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 2 of the present disclosure;

FIG. 6 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 5;

FIG. 7 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 5;

FIG. 8 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 5;

FIG. 9 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 3 of the present disclosure;

FIG. 10 is a schematic diagram of a longitudinal aberration of thecamera optical lens shown in FIG. 9;

FIG. 11 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 9;

FIG. 12 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 9.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

To make the objects, technical solutions, and advantages of the presentdisclosure clearer, the embodiments of the present disclosure aredescribed in detail with reference to the accompanying drawings asfollows. A person of ordinary skill in the related art would understandthat, in the embodiments of the present disclosure, many technicaldetails are provided to make readers better understand this application.However, the technical solutions sought to be protected by thisapplication could be implemented, even without these technical detailsand any changes and modifications based on the following embodiments.

Embodiment 1

As shown in the accompanying drawings, the present disclosure provides acamera optical lens 10. FIG. 1 shows the camera optical lens 10 ofEmbodiment 1 of the present disclosure, the camera optical lens 10includes five lenses in total. Specifically, the camera optical lens 10includes in sequence from an object side to an image side: a first lensL1, an aperture S1, a second lens L2, a third lens L3, a fourth lens L4and a fifth lens L5. An optical element such as an optical filter GF maybe arranged between the fifth lens L5 and an image surface Si.

In this embodiment, the first lens L1 has a negative refractive power,the second lens L2 has a positive refractive power, the third lens L3has a negative refractive power, the fourth lens L4 has a positiverefractive power, and the fifth lens L5 has a negative refractive power.

In this embodiment, the first lens L1, the second lens L2, the thirdlens L3, the fourth lens L4 and the fifth lens L5 are all made ofplastic material. In some embodiments, the lenses may also be made ofother materials.

In this embodiment, a focal length of the camera optical lens 10 isdefined as f, and a focal length of the first lens L1 is defined as f1.The camera optical lens 10 satisfies a condition of −5.00≤f1/f≤−3.00,which specifies a ratio between the focal length f1 of the first lens L1and the focal length f of the camera optical lens 10. When the abovecondition is satisfied, it is beneficial for correction of aberrationsand thus improving imaging quality. The focal length of the cameraoptical lens 10 is defined as f, and a focal length of the fifth lens L5is defined as f5. The camera optical lens 10 satisfies a condition of−1.50≤f5/f≤−1.00, which specifies a ratio between the focal length f5 ofthe fifth lens and the focal length f of the camera optical lens 10.When the above condition is satisfied, it is beneficial for correctionof field curvature.

A central curvature radius of an object side surface of the fourth lensL4 is defined as R7, and a central curvature radius of an image sidesurface of the fourth lens L4 is defined as R8. The camera optical lens10 further satisfies a condition of 1.20≤(R7+R8)/(R7−R8)≤3.00, whichspecifies a shape of the fourth lens. When the above condition issatisfied, the degree of light deflection when passing through the lensis reduced, and thus the aberration is effectively reduced.

An on-axis thickness of the fourth lens L4 is defined as d7, and anon-axis distance from the image side surface of the fourth lens L4 to anobject side surface of the fifth lens L5 is defined as d8. The cameraoptical lens 10 further satisfies a condition of 8.00≤d7/d8≤14.00. Whenthe above condition is satisfied, it is beneficial for lens processingand assembly.

An on-axis thickness of the second lens L2 is defined as d3, and anon-axis distance from an image side surface of the second lens L2 to anobject side surface of the third lens L3 is defined as d4. The cameraoptical lens 10 further satisfies a condition of 2.50≤d3/d4≤5.00. Whenthe ratio is within the above range, it is beneficial for reducingsystem sensitivity and improving production yield.

In this embodiment, an object side surface of the first lens L1 isconcave in a paraxial region and an image side surface of the first lensL1 is concave in the paraxial region.

A central curvature radius of the object side surface of the first lensL1 is defined as R1, and a central curvature radius of the image sidesurface of the first lens L1 is defined as R2. The camera optical lens10 satisfies a condition of −4.44≤(R1+R2)/(R1−R2)≤0.38, thus the shapeof the first lens is reasonably controlled, so that the first lens L1may effectively correct system spherical aberration. Preferably, thecamera optical lens 10 further satisfies a condition of−2.78≤(R1+R2)/(R1−R2)≤0.30.

An on-axis thickness of the first lens L1 is defined as d1, and a totaloptical length from an object side surface of the first lens to an imagesurface of the camera optical lens along an optical axis is defined asTTL. The camera optical lens 10 further satisfies a condition of0.03≤d1/TTL≤0.10, thus the shape of the first lens is reasonablycontrolled, which is beneficial for realization of ultra-thin lenses.Preferably, the camera optical lens 10 further satisfy a condition of0.05≤d1/TTL≤0.08.

In this embodiment, an object side surface of the second lens L2 isconvex in a paraxial region, and the image side surface of the secondlens L2 is convex in the paraxial region.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the second lens L2 is defined as f2. The camera opticallens 10 satisfies a condition of 0.58≤f2/f≤2.44. By controlling apositive refractive power of the second lens L2 within a reasonablerange, correction of the aberration of the optical system can befacilitated. Preferably, the camera optical lens 10 satisfies acondition of 0.92≤f2/f≤1.96.

A central curvature radius of the object side surface of the second lensL2 is defined as R3, and a central curvature radius of the image sidesurface of the second lens L2 is defined as R4. The camera optical lens10 further satisfy a condition of −0.30≤(R3+R4)/(R3−R4)≤0.82, whichspecifies a shape of the second lens L2. Within this range, adevelopment towards ultra-thin lenses would facilitate correcting theproblem of an on-axis aberration. Preferably, the camera optical lens 10satisfies a condition of −0.19≤(R3+R4)/(R3−R4)≤0.65.

An on-axis thickness of the second lens L2 is defined as d3, and thetotal optical length from the object side surface of the first lens L1to the image surface Si of the camera optical lens 10 along the opticalaxis is defined as TTL. The camera optical lens 10 satisfies a conditionof 0.05≤d3/TTL≤0.22. When the above condition is satisfied, it isbeneficial for realization of ultra-thin lenses. Preferably, the cameraoptical lens 10 satisfies a condition of 0.09≤d3/TTL≤0.18.

In this embodiment, the object side surface of the third lens L3 isconvex in a paraxial region, and an image side surface of the third lensL3 is concave in the paraxial region.

The focal length of the camera optical lens 10 is defined as f, and thefocal length of the third lens L3 is defined as f3. The camera opticallens 10 satisfies a condition of −93.36≤f3/f≤−4.82. The system obtainsbetter imaging quality and lower sensitivity by reasonable distributionof focal power. Preferably, the camera optical lens 10 satisfies acondition of −58.35≤f3/f≤−6.02.

A central curvature radius of the object side surface of the third lensL3 is defined as R5, and a central curvature radius of the image sidesurface of the third lens L3 is defined as R6. The camera optical lens10 satisfies a condition of 1.70≤(R5+R6)/(R5−R6)≤40.12, which specifiesa shape of the third lens L3. When the above condition is satisfied, thedegree of light deflection when passing through the lens may be reduced,and thus the aberration is effectively reduced. Preferably, the cameraoptical lens 10 satisfies a condition of 2.72≤(R5+R6)/(R5−R6)≤32.10.

An on-axis thickness of the third lens L3 is defined as d5, and thetotal optical length from the object side surface of the first lens L1to the image surface Si of the camera optical lens 10 along the opticalaxis is defined as TTL. The camera optical lens 10 satisfies a conditionof 0.02≤d5/TTL≤0.07. When the above condition is satisfied, it isbeneficial for realization of ultra-thin lenses. Preferably, the cameraoptical lens 10 satisfies a condition of 0.04≤d5/TTL≤0.05.

In this embodiment, the object side surface of the fourth lens L4 isconcave in a paraxial region and the image side surface of the fourthlens L4 is convex in the paraxial region.

The focal length of the camera optical lens 10 is defined as f, and thefocal length of the fourth lens L4 is defined as f4. The camera opticallens 10 satisfies a condition of 0.39≤f4/f≤1.71. The system has betterimaging quality and lower sensitivity by reasonably distributing thefocal power. Preferably, the camera optical lens 10 satisfies acondition of 0.62≤f4/f≤1.37.

A central on-axis thickness of the fourth lens L4 satisfies is definedas d7, and the total optical length from the object side surface of thefirst lens L1 to the image surface Si of the camera optical lens 10along the optical axis is defined as TTL. The camera optical lens 10satisfies a condition of 0.11≤d7/TTL≤0.36. When the above condition issatisfied, the realization of ultra-thin lenses is facilitated.Preferably, the camera optical lens 10 further satisfy a condition of0.17≤d7/TTL≤0.29.

In this embodiment, the object side surface of the fifth lens L5 isconvex in a paraxial region, and an image side surface of the fifth lensL5 is concave in the paraxial region.

A central curvature radius of the object side surface of the fifth lensL5 is defined as R9, and a central curvature radius of the image sidesurface of the fifth lens L5 is defined as R10. The camera optical lens10 satisfies a condition of 0.98≤(R9+R10)/(R9−R10)≤4.92, which specifiesthe shape of the fifth lens L5. When the above condition is satisfied, adevelopment towards ultra-thin and wide-angle lens would facilitatecorrecting a problem like an off-axis picture aberration. Preferably,the camera optical lens 10 satisfies a condition of1.56≤(R9+R10)/(R9−R10)≤3.93.

An on-axis thickness of the fifth lens L5 is defined as d9, and thetotal optical length from the object side surface of the first lens L1to the image surface Si of the camera optical lens 10 along the opticalaxis is defined as TTL. The camera optical lens 10 satisfies a conditionof 0.05≤d9/TTL≤0.21. When the above condition is satisfied, therealization of ultra-thin lenses is facilitated. Preferably, the cameraoptical lens 10 satisfies a condition of 0.07≤d9/TTL≤0.17.

It shall be understood that in other embodiments, the object sidesurfaces and the image side surfaces of the first lens L1, the secondlens L2, the third lens L3, the fourth lens L4 and the fifth lens L5 maybe provided as having convex or concave shapes other than thosedescribed above.

In this embodiment, an image height of the camera optical lens 10 isdefined as IH, and the total optical length of the camera optical lensis defined as TTL. The camera optical lens 10 satisfies a condition ofTTL/IH≤1.75, thereby the realization of ultra-thin lenses isfacilitated.

In this embodiment, a field of view FOV of the camera optical lens 10 isgreater than or equal to 119.00°, thus realizing a wide angle.

In this embodiment, an aperture value FNO of the camera optical lens 10is less than or equal to 2.26, thus realizing a large aperture.

When the above conditions are satisfied, the camera optical lens 10 hasa large aperture, a wide angle, and an ultra-thinness while having goodoptical performances; and with such properties, the camera optical lens10 is particularly suitable for a mobile camera lens assembly and a WEBcamera lens that have CCD, CMOS and other imaging elements with highpixels.

In the following, an example will be taken to describe the cameraoptical lens 10 of the present disclosure. The symbols recorded in eachexample are as follows. The unit of the focal length, the on-axisdistance, the central curvature radius, the on-axis thickness, aninflexion point position and an arrest point position is mm.

TTL: optical length (the total optical length from the object sidesurface of the first lens L1 to the image surface Si) in mm.

Aperture value FNO: Ratio of an effective focal length of the cameraoptical lens 10 to an entrance pupil diameter.

Preferably, inflexion points and/or arrest points may be arranged on theobject side surface and/or image side surface of the lens, so as tosatisfy the demand for high quality imaging. The description below maybe referred to for specific implementations.

The design information of the camera optical lens 10 in Embodiment 1 ofthe present disclosure is shown in Tables 1 and 2.

TABLE 1 R d nd vd S1 ∞ d0= −0.923 R1 −6.270 d1= 0.327 nd1 1.5444 v155.82 R2 10.435 d2= 0.609 R3 3.197 d3= 0.651 nd2 1.5444 v2 55.82 R4−4.346 d4= 0.174 R5 2.650 d5= 0.231 nd3 1.6610 v3 20.53 R6 2.459 d6=0.133 R7 −7.360 d7= 1.080 nd4 1.5444 v4 55.82 R8 −0.947 d8= 0.097 R92.873 d9= 0.717 nd5 1.6701 v5 19.39 R10 0.929 d10= 0.488 R11 ∞ d11=0.210 ndg 1.5168 vg 64.17 R12 ∞ d12= 0.396

In the table, meanings of various symbols will be described as follows.

S1: Aperture;

R: curvature radius at a center of an optical surface;

R1: central curvature radius of the object side surface of the firstlens L1;

R2: central curvature radius of the image side surface of the first lensL1;

R3: central curvature radius of the object side surface of the secondlens L2;

R4: central curvature radius of the image side surface of the secondlens L2;

R5: central curvature radius of the object side surface of the thirdlens L3;

R6: central curvature radius of the image side surface of the third lensL3;

R7: central curvature radius of the object side surface of the fourthlens L4;

R8: central curvature radius of the image side surface of the fourthlens L4;

R9: central curvature radius of the object side surface of the fifthlens L5;

R10: central curvature radius of the image side surface of the fifthlens L5;

R11: central curvature radius of an object side surface of the opticalfilter GF;

R12: central curvature radius of an image side surface of the opticalfilter GF;

d: on-axis thickness of a lens and an on-axis distance between lenses;

d0: on-axis distance from the aperture S1 to the object side surface ofthe first lens L1;

d1: on-axis thickness of the first lens L1;

d2: on-axis distance from the image side surface of the first lens L1 tothe object side surface of the second lens L2;

d3: on-axis thickness of the second lens L2;

d4: on-axis distance from the image side surface of the second lens L2to the object side surface of the third lens L3;

d5: on-axis thickness of the third lens L3;

d6: on-axis distance from the image side surface of the third lens L3 tothe object side surface of the fourth lens L4;

d7: on-axis thickness of the fourth lens L4;

d8: on-axis distance from the image side surface of the fourth lens L4to the object side surface of the fifth lens L5;

d9: on-axis thickness of the fifth lens L5;

d10: on-axis distance from the image side surface of the fifth lens L5to the object side surface of the optical filter GF;

d11: on-axis thickness of the optical filter GF;

d12: on-axis distance from the image side surface of the optical filterGF to the image surface Si;

nd: refractive index of d line;

nd1: refractive index of d line of the first lens L1;

nd2: refractive index of d line of the second lens L2;

nd3: refractive index of d line of the third lens L3;

nd4: refractive index of d line of the fourth lens L4;

nd5: refractive index of d line of the fifth lens L5;

ndg: refractive index of d line of the optical filter GF;

vd: abbe number;

v1: abbe number of the first lens L1;

v2: abbe number of the second lens L2;

v3: abbe number of the third lens L3;

v4: abbe number of the fourth lens L4;

v5: abbe number of the fifth lens L5;

vg: abbe number of the optical filter GF.

Table 2 shows aspherical surface data of the camera optical lens 10 inEmbodiment 1 of the present disclosure.

TABLE 2 Conic coefficient Aspherical surface coefficients k A4 A6 A8 A10A12 R1  1.5679E+01 3.3535E−01 −3.5255E−01 4.2214E−01 −3.3824E−016.4943E−02 R2 −6.2628E+01 3.3991E−01  9.4364E−01 −8.0420E+00  3.2372E+01 −7.9036E+01  R3 −9.4953E+00 2.6528E−01 −6.8222E+009.8712E+01 −8.7713E+02 4.8644E+03 R4  1.5231E+01 −8.7533E−02 −2.8214E+00 2.7033E+01 −1.4875E+02 5.0165E+02 R5 −6.0160E+01 4.9281E−02−1.8583E+00 5.2057E+00 −7.4473E+00 3.6254E+00 R6 −2.1524E+01 3.0462E−01−2.3050E+00 6.7327E+00 −1.1948E+01 1.3953E+01 R7  1.1382E+01 3.8403E−01−1.1277E+00 1.7069E+00 −7.8527E−01 −1.0747E+00  R8 −1.9436E+00−1.2917E−02  −1.1493E−01 8.6616E−03  5.1052E−01 −1.0970E+00  R9−5.1850E+01 3.2780E−02 −6.6413E−01 1.3357E+00 −1.5885E+00 1.1985E+00 R10−3.3147E+00 −2.4740E−01   2.2304E−01 −1.4496E−01   6.4757E−02−1.9743E−02  Conic coefficient Aspherical surface coefficients k A14 A16A18 A20 R1  1.5679E+01  1.6835E−01 −1.7693E−01  7.1664E−02 −1.0886E−02R2 −6.2628E+01  1.2092E+02 −1.1247E+02  5.7580E+01 −1.2374E+01 R3−9.4953E+00 −1.6942E+04  3.5847E+04 −4.1992E+04  2.0852E+04 R4 1.5231E+01 −1.0696E+03  1.4042E+03 −1.0369E+03  3.2933E+02 R5−6.0160E+01 −5.8858E−01  6.4370E+00 −9.7696E+00  4.0536E+00 R6−2.1524E+01 −1.1075E+01  5.9194E+00 −1.9318E+00  2.8498E−01 R7 1.1382E+01  1.7822E+00 −1.0728E+00  2.9916E−01 −3.2105E−02 R8−1.9436E+00  1.1101E+00 −5.9324E−01  1.6028E−01 −1.7178E−02 R9−5.1850E+01 −5.7937E−01  1.7301E−01 −2.8809E−02  2.0311E−03 R10−3.3147E+00  4.0088E−03 −5.1672E−04  3.8113E−05 −1.2198E−06

Among them, K is a conic index, A4, A6, A8, A10, A12, A14, A16, A18 andA20 are aspheric surface indexes.

y=(x ² /R)/{1+[1−(k+1)(x ² /R ²)]^(1/2) }+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶ +A18x ¹⁸ +A20x ²⁰  (1)

Where, x is a vertical distance from a point on an aspheric curve to theoptical axis, and y is a depth of the aspheric surface (a verticaldistance from a point on the aspheric surface having a distance x to theoptical lens, to a tangent plane that tangents to a vertex on theoptical axis of the aspheric surface).

For convenience, an aspheric surface of each lens surface uses theaspheric surfaces shown in the above formula (1). However, the presentdisclosure is not limited to the aspherical polynomials form shown inthe formula (1).

Table 3 and table 4 show the inflexion points and the arrest pointdesign data of the camera optical lens 10 lens in Embodiment 1 of thepresent disclosure. Where, P1R1 and P1R2 represent respectively theobject side surface and image side surface of the first lens L1, P2R1and P2R2 represent respectively the object side surface and image sidesurface of the second lens L2, P3R1 and P3R2 represent respectively theobject side surface and image side surface of the third lens L3, P4R1and P4R2 represent respectively the object side surface and image sidesurface of the fourth lens L4, and P5R1 and P5R2 represent respectivelythe object side surface and image side surface of the fifth lens L5.Data in the column named “inflexion point position” refers to verticaldistances from the inflexion points arranged on each lens surface to theoptic axis of the camera optical lens 10. The data in the column named“arrest point position” refers to the vertical distances from the arrestpoints arranged on each lens surface to the optic axis of the cameraoptical lens 10.

TABLE 3 Number of Inflexion Inflexion Inflexion inflexion point pointpoint points position 1 position 2 position 3 P1R1 2 0.215 1.155 / P1R21 0.865 / / P2R1 1 0.465 / / P2R2 1 0.835 / / P3R1 2 0.285 0.935 / P3R23 0.415 0.955 1.045 P4R1 2 0.205 0.955 / P4R2 1 1.025 / / P5R1 2 0.3551.435 / P5R2 2 0.545 2.365 /

TABLE 4 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 1 0.385 / P1R2 0 / / P2R1 0 / / P2R2 0 / / P3R1 1 0.485/ P3R2 1 0.855 / P4R1 2 0.555 1.095 P4R2 0 / / P5R1 1 0.625 / P5R2 11.415 /

FIG. 2 and FIG. 3 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 470 nm, 510 nm, 555 nm, 610 nm and650 nm after passing the camera optical lens 10 according toEmbodiment 1. FIG. 4 illustrates the field curvature and distortion oflight with a wavelength of 555 nm after passing the camera optical lens10 according to Embodiment 1, the field curvature S in FIG. 4 is a fieldcurvature in the sagittal direction, T is a field curvature in ameridian direction.

The following Table 13 shows various values of Embodiments 1, 2, 3 andvalues corresponding to parameters which are already specified in theabove conditions.

As shown in Table 13, Embodiment 1 satisfies the various conditions.

In this embodiment, the entrance pupil diameter ENPD of the cameraoptical lens 10 is 0.949 mm, a full vision field image height IH is2.940 mm, a field of view FOV in a diagonal direction is 119.400, thusthe camera optical lens 10 has a large aperture, a wide-angle and isultra-thin. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics.

Embodiment 2

Embodiment 2 is basically the same as Embodiment 1 and involves symbolshaving the same meanings as Embodiment 1, and only differencestherebetween will be described in the following.

FIG. 5 illustrates a camera optical lens 20 according to Embodiment 2 ofthe present disclosure.

Table 5 and table 6 show design data of a camera optical lens 20 inEmbodiment 2 of the present disclosure.

TABLE 5 R d nd vd S1 ∞ d0= −0.951 R1 −9.425 d1= 0.320 nd1 1.5444 v155.82 R2 5.610 d2= 0.631 R3 3.609 d3= 0.556 nd2 1.5444 v2 55.82 R4−2.874 d4= 0.221 R5 3.437 d5= 0.230 nd3 1.6610 v3 20.53 R6 2.497 d6=0.115 R7 −7.864 d7= 1.219 nd4 1.5444 v4 55.82 R8 −0.843 d8= 0.089 R91.825 d9= 0.498 nd5 1.6700 v5 19.39 R10 0.719 d10= 0.500 R11 ∞ d11=0.210 ndg 1.5168 vg 64.17 R12 ∞ d12= 0.521

Table 6 shows aspherical surface data of each lens of the camera opticallens 20 in Embodiment 2 of the present disclosure.

TABLE 6 Conic Coefficient Aspheric Surface Indexes k A4 A6 A8 A10 A12 R1 6.3793E+00  3.2503E−01 −1.9541E−01  −6.0024E−02  6.1925E−01 −1.1682E+00R2 −7.9169E+00  4.3844E−01 3.6827E−01 −3.2247E+00  1.3579E+01−3.4583E+01 R3 −3.1915E+00  2.9669E−01 −6.7360E+00   9.2906E+01−7.9615E+02  4.3275E+03 R4 −8.0082E+00 −9.8389E−02 −2.6110E+00  2.8558E+01 −1.7123E+02  6.1159E+02 R5 −5.6001E+01 −3.3950E−014.2611E−01 −9.2226E−01 −1.4054E+00  1.1661E+01 R6 −1.6586E+01−2.0850E−01 2.0250E−01  1.0407E−01 −1.3106E+00  3.4432E+00 R7 1.0577E+01  8.1878E−02 −2.0680E−01   6.1567E−01 −6.4539E−01 −2.3441E−02R8 −2.4040E+00 −1.2163E−01 2.9145E−01 −8.9606E−01  1.7716E+00−2.1890E+00 R9 −1.7602E+01 −1.4902E−01 8.0359E−02 −1.5378E−01 2.6611E−01 −3.0288E−01 R10 −4.1608E+00 −1.9058E−01 1.8190E−01−1.3595E−01  6.9156E−02 −2.3654E−02 Conic Coefficient Aspheric SurfaceIndexes k A14 A16 A18 A20 R1  6.3793E+00 1.1917E+00 −7.0006E−012.1890E−01 −2.8136E−02 R2 −7.9169E+00 5.6165E+01 −5.4242E+01 2.7519E+01−5.6068E+00 R3 −3.1915E+00 −1.4942E+04   3.1621E+04 −3.7284E+04  1.8712E+04 R4 −8.0082E+00 −1.3385E+03   1.7554E+03 −1.2686E+03  3.8977E+02 R5 −5.6001E+01 −2.7195E+01   3.3271E+01 −2.1970E+01  6.1791E+00 R6 −1.6586E+01 −4.8041E+00   3.7803E+00 −1.5675E+00  2.6404E−01 R7  1.0577E+01 6.0615E−01 −5.4504E−01 2.1122E−01 −3.2105E−02R8 −2.4040E+00 1.6843E+00 −7.6724E−01 1.8718E−01 −1.8730E−02 R9−1.7602E+01 2.0097E−01 −7.5572E−02 1.5016E−02 −1.2253E−03 R10−4.1608E+00 5.3330E−03 −7.5636E−04 6.0699E−05 −2.0815E−06

Table 7 and table 8 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 20 according toEmbodiment 2 of the present disclosure.

TABLE 7 Number of Inflexion Inflexion Inflexion inflexion point pointpoint points position 1 position 2 position 3 P1R1 2 0.175 1.145 / P1R20 / / / P2R1 1 0.575 / / P2R2 0 / / / P3R1 1 0.245 / / P3R2 1 0.385 / /P4R1 2 0.455 0.965 / P4R2 3 1.015 1.295 1.365 P5R1 2 0.395 1.535 / P5R22 0.515 2.225 /

TABLE 8 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 1 0.295 / P1R2 0 / / P2R1 0 / / P2R2 0 / / P3R1 1 0.435/ P3R2 1 0.815 / P4R1 2 0.705 1.115 P4R2 0 / / P5R1 1 0.765 / P5R2 11.395 /

FIG. 6 and FIG. 7 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 470 nm, 510 nm, 555 nm, 610 nm and650 nm after passing the camera optical lens 20 according to Embodiment2. FIG. 8 illustrates a field curvature and a distortion of light with awavelength of 555 nm after passing the camera optical lens 20 accordingto Embodiment 2. The field curvature S in FIG. 8 is a field curvature ina sagittal direction, and T represents field curvature in meridiandirection.

As shown in Table 13, Embodiment 2 satisfies the above conditions.

In this embodiment, the entrance pupil diameter ENPD of the cameraoptical lens 20 is 0.934 mm. The full vision field image height IH is2.940 mm, the field of view FOV in the diagonal direction is 120.00°.Thus, the camera optical lens 20 has a large aperture, a wide-angle andis ultra-thin. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics.

Embodiment 3

Embodiment 3 is basically the same as Embodiment 1 and involves symbolshaving the same meanings as Embodiment 1, and only differencestherebetween will be described in the following.

FIG. 9 illustrates a camera optical lens 30, and an image side surfaceof the first lens L1 is convex in a paraxial region.

Table 9 and Table 10 show design data of a camera optical lens 30 inEmbodiment 3 of the present disclosure.

TABLE 9 R d nd vd S1 ∞ d0= −0.942 R1 −3.462 d1= 0.320 nd1 1.5444 v155.82 R2 −9.130 d2= 0.623 R3 5.588 d3= 0.758 nd2 1.5444 v2 55.82 R4−1.644 d4= 0.152 R5 10.041 d5= 0.230 nd3 1.6610 v3 20.53 R6 5.473 d6=0.195 R7 −1.869 d7= 1.080 nd4 1.5444 v4 55.82 R8 −0.925 d8= 0.129 R91.262 d9= 0.471 nd5 1.6700 v5 19.39 R10 0.672 d10= 0.500 R11 ∞ d11=0.210 ndg 1.5168 vg 64.17 R12 ∞ d12= 0.442

Table 10 shows aspherical surface data of respective lens of the cameraoptical lens 30 in Embodiment 3 of the present disclosure.

TABLE 10 Conic Coefficient Aspheric Surface Indexes k A4 A6 A8 A10 A12R1 −9.7293E+00 2.9887E−01 −1.6588E−01 −1.3831E−01   5.7081E−01−7.4087E−01  R2 −1.4718E+01 5.4245E−01 −1.8175E+00 1.2986E+01−5.9768E+01 1.6613E+02 R3  2.0671E+00 5.6599E−01 −1.3779E+01 1.8523E+02−1.5211E+03 7.8567E+03 R4 −7.0325E+00 1.9033E−02 −5.7993E+00 5.0865E+01−2.5308E+02 7.8660E+02 R5 −3.7578E+00 1.7544E−01 −4.5434E+00 2.1523E+01−6.0209E+01 1.0869E+02 R6  5.7182E+00 5.3490E−01 −4.1183E+00 1.3598E+01−2.7755E+01 3.7131E+01 R7 −4.7017E+00 4.8558E−01 −1.3106E+00 1.4592E+00 1.7542E−01 −1.9126E+00  R8 −2.4840E+00 −3.8261E−01   1.4680E+00−4.0506E+00   6.9109E+00 −7.5145E+00  R9 −1.4533E+01 −4.4619E−02 −1.3724E−01 1.2421E−01 −6.1887E−02 1.7949E−02 R10 −4.0219E+00−1.2965E−01   7.9056E−02 −5.1282E−02   2.7430E−02 −1.0339E−02  ConicCoefficient Aspheric Surface Indexes k A14 A16 A18 A20 R1 −9.7293E+00 5.3151E−01 −2.2409E−01   5.3163E−02 −5.7312E−03  R2 −1.4718E+01−2.7805E+02 2.7380E+02 −1.4513E+02 3.1711E+01 R3  2.0671E+00 −2.5609E+045.0934E+04 −5.6272E+04 2.6449E+04 R4 −7.0325E+00 −1.5563E+03 1.9041E+03−1.3162E+03 3.9401E+02 R5 −3.7578E+00 −1.3058E+02 1.0250E+02 −4.8323E+011.0494E+01 R6  5.7182E+00 −3.2533E+01 1.7877E+01 −5.5539E+00 7.4039E−01R7 −4.7017E+00  1.9212E+00 −9.5011E−01   2.5802E−01 −3.2105E−02  R8−2.4840E+00  5.1798E+00 −2.1623E+00   4.9458E−01 −4.7346E−02  R9−1.4533E+01 −3.0986E−03 4.5359E−04 −6.2921E−05 3.8283E−06 R10−4.0219E+00  2.5284E−03 −3.7879E−04   3.1390E−05 −1.0923E−06 

Table 11 and table 12 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 30 according toEmbodiment 3 of the present disclosure.

TABLE 11 Number of Inflexion Inflexion Inflexion Inflexion inflexionpoint point point point points position 1 position 2 position 3 position4 P1R1 2 0.295 1.285 / / P1R2 1 0.145 / / / P2R1 2 0.475 0.545 / / P2R21 0.825 / / / P3R1 2 0.225 0.945 / / P3R2 1 0.385 / / / P4R1 4 0.6850.965 1.165 1.225 P4R2 3 1.045 1.325 1.365 / P5R1 2 0.435 1.565 / / P5R22 0.535 2.245 / /

TABLE 12 Number of arrest points Arrest point position 1 P1R1 1 0.535P1R2 1 0.245 P2R1 0 / P2R2 0 / P3R1 1 0.335 P3R2 1 0.745 P4R1 0 / P4R2 0/ P5R1 1 0.835 P5R2 1 1.435

FIG. 10 and FIG. 11 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 470 nm, 510 nm, 555 nm, 610 nm and650 nm after passing the camera optical lens 30 according to Embodiment3. FIG. 12 illustrates field curvature and distortion of light with awavelength of 555 nm after passing the camera optical lens 30 accordingto Embodiment 3. The field curvature S in FIG. 12 is a field curvaturein a sagittal direction, and T represents field curvature in meridiandirection.

The following Table 13 shows the values corresponding to the conditionsin this embodiment according to the above conditions. Obviously, thecamera optical lens 30 according to this embodiment satisfies thevarious conditions.

In this embodiment, a pupil entering diameter ENPD of the camera opticallens is 0.933 mm, a full vision field image height IH is 2.940 mm, and afield of view in the diagonal direction is 119.80°. Thus, the cameraoptical lens 30 has a large aperture, a wide-angle and is ultra-thin.Its on-axis and off-axis chromatic aberrations are fully corrected,thereby achieving excellent optical characteristics.

TABLE 13 Parameters and conditions Embodiment 1 Embodiment 2 Embodiment3 f1/f −3.34 −3.04 −4.96 f5/f −1.12 −1.02 −1.49 (R7 + R8)/(R7 − R8) 1.301.24 2.96 d7/d8 11.13 13.70 8.37 f 2.135 2.102 2.100 f1 −7.121 −6.391−10.416 f2 3.479 3.021 2.415 f3 −99.658 −15.184 −18.411 f4 1.877 1.6282.389 f5 −2.386 −2.144 −3.129 f12 5.424 4.506 2.688 FNO 2.25 2.25 2.25TTL 5.113 5.110 5.110 IH 2.940 2.940 2.940 FOV 119.40° 120.00° 119.80°

It can be appreciated by one having ordinary skill in the art that thedescription above is only embodiments of the present disclosure. Inpractice, one having ordinary skill in the art can make variousmodifications to these embodiments in forms and details withoutdeparting from the spirit and scope of the present disclosure.

What is claimed is:
 1. A camera optical lens, comprising five lenses,wherein, the five lenses are, from an object side to an image side insequence: a first lens having a negative refractive power; a second lenshaving a positive refractive power; a third lens having a negativerefractive power; a fourth lens having a positive refractive power; anda fifth lens having a negative refractive power; wherein, the cameraoptical lens satisfies the following conditions: −5.00≤f1/f≤−3.00;−1.50≤f5/f≤−1.00; 1.20≤(R7+R8)/(R7−R8)≤3.00; and 8.00≤d7/d8≤14.00;wherein, f denotes a focus length of the camera optical lens; f1 denotesa focus length of the first lens; f5 denotes a focus length of the fifthlens; R7 denotes a central curvature radius of an object side surface ofthe fourth lens; R8 denotes a central curvature radius of an image sidesurface of the fourth lens; d7 denotes an on-axis thickness of thefourth lens; and d8 denotes an on-axis distance from the image sidesurface of the fourth lens to an object side surface of the fifth lens.2. The camera optical lens according to claim 1, wherein, the cameraoptical lens further satisfies the following conditions:2.50≤d3/d4≤5.00; wherein, d3 denotes an on-axis thickness of the secondlens; and d4 denotes an on-axis distance from an image side surface ofthe second lens to an object side surface of the third lens.
 3. Thecamera optical lens according to claim 1, wherein, the camera opticallens further satisfies the following conditions:−4.44≤(R1+R2)/(R1−R2)≤0.38; and 0.03≤d1/TTL≤0.10; wherein, R1 denotes acentral curvature radius of an object side surface of the first lens; R2denotes a central curvature radius of an image side surface of the firstlens; d1 denotes an on-axis thickness of the first lens; and TTL denotesa total optical length from an object side surface of the first lens toan image surface of the camera optical lens along an optical axis. 4.The camera optical lens according to claim 1, wherein, the cameraoptical lens further satisfies the following conditions: 0.58≤f2/f≤2.44;−0.30≤(R3+R4)/(R3−R4)≤0.82; and 0.05≤d3/TTL≤0.22; wherein, f2 denotes afocus length of the second lens; R3 denotes a central curvature radiusof an object surface of the second lens; R4 denotes a central curvatureradius of an image side surface of the second lens; d3 denotes anon-axis thickness of the second lens; and TTL denotes a total opticallength from an object side surface of the first lens to an image surfaceof the camera optical lens along an optical axis.
 5. The camera opticallens according to claim 1, wherein, the camera optical lens satisfiesthe following conditions: −93.36≤f3/f≤−4.82; 1.70≤(R5+R6)/(R5−R6)≤40.12;and 0.02≤d5/TTL≤0.07; wherein, f3 denotes a focus length of the thirdlens; R5 denotes a central curvature radius of an object surface of thethird lens; R6 denotes a central curvature radius of an image sidesurface of the third lens; d5 denotes an on-axis thickness of the thirdlens; and TTL denotes a total optical length from an object side surfaceof the first lens to an image surface of the camera optical lens alongan optical axis.
 6. The camera optical lens according to claim 1,wherein, the camera optical lens further satisfies the followingconditions: 0.39≤f4/f≤1.71; and 0.11≤d7/TTL≤0.36; wherein, f4 denotes afocus length of the fourth lens; and TTL denotes a total optical lengthfrom an object side surface of the first lens to an image surface of thecamera optical lens along an optical axis.
 7. The camera optical lensaccording to claim 1, wherein, the camera optical lens further satisfiesthe following conditions: 0.98≤(R9+R10)/(R9−R10)≤4.92; and0.05≤d9/TTL≤0.21; wherein, R9 denotes a central curvature radius of theobject surface of the fifth lens; R10 denotes a central curvature radiusof an image side surface of the fifth lens; d9 denotes an on-axisthickness of the fifth lens; and TTL denotes a total optical length froman object side surface of the first lens to an image surface of thecamera optical lens along an optical axis.
 8. The camera optical lensaccording to claim 1, wherein the camera optical lens further satisfiesthe following conditions: TTL/IH≤1.75; wherein, IH denotes an imageheight of the camera optical lens; and TTL denotes a total opticallength from an object side surface of the first lens to an image surfaceof the camera optical lens along an optical axis.
 9. The camera opticallens according to claim 1, wherein the camera optical lens furthersatisfies the following conditions: FOV≥119.00°; wherein, FOV denotes afield of view of the camera optical lens.
 10. The camera optical lensaccording to claim 1, wherein the camera optical lens further satisfiesthe following conditions: FNO≤2.26; wherein, FNO denotes an aperturevalue of the camera optical lens.